Should Main Street be a 20 MPH street?

Main Street is Laurel's original commercial corridor and currently the only stretch of retail/office that was designed for walk-up traffic.  It has wide sidewalks (up to 10' including the tree boxes).  It is a designated bike route in the City.  The buildings are not set back from the property lines and there are no parking lots in between the road and the building entrances.  In short, it was designed for the people that live on and adjacent to Main street - like a traditional city.  It, however, has a speed limit of 25 mph, which is often the default lowest speed limit assigned to roads.  Residents have often stated that drivers were going too fast on Main Street.  Data shows that the average speed is about 22 MPH with 70% of the traffic traveling below the speed limit. However, a better question may be:  Is 25 mph the correct speed limit for Main Street?

A trend that has been developing in Europe and is just beginning here in the US, is 20 mph streets.  Typically, 25 MPH is the default minimum – often reserved for residential roads, but based largely on the design speed that the roadway was designed for. Somerset, MD, a small lovely residential hamlet in Montgomery County, has made a policy decision to reduce the speed limit for the entire town to 20 MPH. 

This decision was not an engineering one (which typically deals with only the safety of drivers that are already pretty safe wrapped up in a 3000 lb steel box).  Rather, it was a decision based on planning for slower roads and roads that are safer for all users (children, joggers, cyclists, etc.). 

Some of the the positives and negatives of a slower Main Street are:

Positives:

·       Slower speeds making walking more comfortable for pedestrians.

·       Slower speeds are better for bikers (speed differential between cars and bike is a main factor in bicycling level of comfort and broadening its appeal to more users.

·       A pedestrian getting hit at 25 mph has 4-fold higher likelihood of dyeing than at 20 mph.

·       Slower drivers are more apt to see the types of businesses that line Main Street.

·       There is simply no engineering reason to allow/encourage 25mph speeds on Main Street, but there are certainly economic and safety reasons for lowering the speed limit.

Negatives:

·         A driver will need an extra 23 seconds to travel the main retail stretch from MD 216 to US 1.

That’s it.  On the surface, relying on planning and policy, rather than what a roadway could handle, sure seems to be a better way for towns to assign speed limits.



Links Edition - developing the smart way

Haven't had the time to update this Blog as frequently as I would like.  In reality, I see it morphing toward editorializing and discussion of best practices, rather than an update/discussion on Laurel-specific plans (tough to do the latter when you're no longer in the know).  Strangely, this site gets 300 to 400 hits a month still, mostly from people researching pedestrian and bike safety/infrastructure. Kind of flattering for the City, no?  Regardless, here are some links to articles I've finally gotten around to reading that may be informative to those that still come here:

• College Park City Council gets it: "Among the city’s conditions for approval were moving and reorienting the buildings to make them more accessible to pedestrians on River Road, in advance of future development for a Purple Line station."  
• Fitting an entire village (and all its tax revenue) in the space the of a single non-tax generating County parking lot.
• How much is a bike trail worth? (self explanatory)
• For those that think stop signs always make streets safer.
• The importance of pedestrian and bike master planning.
• Bike can run red lights in Paris. 
• Creating sustainable Cities.(a long, but good, read)
• The case for bike infrastructure (this is a long read but worth your time)

Year in review; and some new ideas, too!

The following is a quick review of pedestrian & bike capital improvements in Laurel. The City:

• added bike lanes on Cypress Street, including the City’s first bike box.
• added sidewalk on 7^th Street in Old Town.
• added Laurel Lakes Drive near the Safeway.
• added a 8’ wide hiker-biker trail on Van Dusen, south of MD 198.
• added bike sharrows on Laurel Lakes Drive
• widened the sidewalk on a large portion of Cherry Lane to 8’ wide.
• Brooklyn Bridge Road was resurfaced by the County with wider shoulders near the gully. The wider shoulders make it easier on bikers and joggers.
• MD SHa, at the City’s behest, installed sidewalk on Route 1 south of Cypress, completing the sidewalk network for the entire length of Route 1 in the City.
• The bike lanes on 4^th Street were completed
• Bike parking was added to City Hall and to the new 5^th Street Community Center.
• Decorative period-style sign posts and sign backers were installed on parts of Main Street.
• The crosswalks were widened on Cherry Lane at 4^th Street.

Very good year for those not dependent on their cars.  Now, let’s keep up the momentum by:

• Installing bike lanes on the Mulberry and Laurel Place to complete the north-south bike route through the entire city.  Conceptual plans have already been drawn up and can be incorporated into the CIP’s resurfacing project for both roads.
• Updating policy and infrastructure goals/designs of the City’s Bike Masterplan.  This should be a winter-time project. I volunteer to lead the public hearings, draft  any policy changes and create the visuals, if need be.  But given that the masterplan is now attached to the City’s Uniformed Land Development Code, it is imperative to keep this plan updated and fresh.
• Prohibit parking on Laurel Place. 
• Consider policy changes that allow bicyclists to treat stop signs as yield signs and signals as stop signs.
• Installing cycle-tracks on Van Dusen and buffered bike lanes on Cherry Lane.
• Completing the 8' trail south of the dog park.
• Planting more shade trees along existing trails.
• Finding a way to get more bus shelters in place – too many “sticks in the ground” are posing as bus stops, without shelters or even sidewalk leading to the stop.  This needs to change if we are going to encourage alternative transportation modes.

Have a great 2012, Laurel!